https://bugs.gentoo.org/920788 From f6e90ad1a649c4032b957fa101d30c14de3b7e5d Mon Sep 17 00:00:00 2001 From: Sam James Date: Wed, 27 Dec 2023 22:37:42 +0000 Subject: [PATCH] configure.ac: fixup LFS check for autoconf-2.72 There are two problems with the check: 1) The 'unknown' case has a problem which is rejected by stricter C compilers because it has -Wimplicit-int and -Wimplicit-function-declaration warnings. Fix that. 2) For the 'other' case, we were using the value of ac_cv_sys_file_offset_bits for -D_FILE_OFFSET_BITS to pass down into the Perl module build, but autoconf-2.72 drops the use of ac_cv_sys_file_offset_bits in cf09f48841b66fe76f606dd6018bb3a93242a7c9, so this ends up defining '-D_FILE_OFFSET_BITS=' which then breaks the build. I've added a hack for 2) to preserve the old behavior. Signed-off-by: Sam James --- configure.ac | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 57c21edb77..99aa9c21af 100644 --- a/configure.ac +++ b/configure.ac @@ -503,7 +503,8 @@ if test "$enable_largefile" != no; then unknown) AC_MSG_CHECKING([for native large file support]) AC_RUN_IFELSE([AC_LANG_PROGRAM([#include - main () { + #include + int main () { exit(!(sizeof(off_t) == 8)); }])], [ac_cv_sys_file_offset_bits=64; AC_DEFINE(_FILE_OFFSET_BITS,64) @@ -511,6 +512,9 @@ if test "$enable_largefile" != no; then [AC_MSG_RESULT([no])]) ;; *) + if test "$ac_cv_sys_file_offset_bits" = ''; then + ac_cv_sys_file_offset_bits=64; + fi LFS_CPPFLAGS="$LFS_CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits" ;; esac